The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 290
r and a motor. To illustrate this, the curves shown in Figs. 94 and95 (both taken from the same machine) have been drawTi. MISCELLANEOUS TESTS. 275 Fig. 94 is the curve obtained when the machine wassupplying current. Fig. 95 shows a curve obtained fromthe same machine when supplied with current… … Fig. 94.—Curve of Potential Round the Commutator. Machine Working asGenerator. method of investigating the field ^distribution—one of themost important factors ia djmamo design for producingsparkless running. Regulation by Shifting Brushes.—In some cases it isnecessary to provide for very great…
Dynamos · Electric motors
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